I have the Hx5 and the first thing I'd check if there is no steam is that holes have not caked up with limescale while it's not being used. I have had this problem several times by not using a water softener each time. Spray some Viakal (or other limescale remover) on the bottom plate and also put some in the reservoir with some water, leave it for a bit and then switch on and see if that makes a difference.
right - put the vinegar as instructed - what is happening the steam is coming out of the push off and on button which is too hot to touch - also felt the bottom - cold. - is it finished before it's begun. thanks
good answer cos I do have very good mops vileda etc no I've told myself after that Air Fryer not being used - no more gadgets. Mind made enough. thanks